| 1 | // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
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| 2 | #include "test.h" |
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| 3 | #include <signal.h> |
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| 4 | #include <sys/types.h> |
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| 5 | |
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| 6 | static void handler(int, siginfo_t*, void*) { |
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| 7 | // CHECK: WARNING: ThreadSanitizer: signal-unsafe call inside of a signal |
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| 8 | // CHECK: #0 malloc |
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| 9 | // CHECK: #{{(1|2)}} handler(int, {{(__)?}}siginfo{{(_t)?}}*, void*) {{.*}}signal_malloc.cpp:[[@LINE+2]] |
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| 10 | // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler |
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| 11 | volatile char *p = (char*)malloc(size: 1); |
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| 12 | p[0] = 0; |
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| 13 | // CHECK: WARNING: ThreadSanitizer: signal-unsafe call inside of a signal |
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| 14 | // CHECK: #0 free |
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| 15 | // CHECK: #{{(1|2)}} handler(int, {{(__)?}}siginfo{{(_t)?}}*, void*) {{.*}}signal_malloc.cpp:[[@LINE+2]] |
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| 16 | // CHECK: SUMMARY: ThreadSanitizer: signal-unsafe call inside of a signal{{.*}}handler |
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| 17 | free(ptr: (void*)p); |
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| 18 | } |
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| 19 | |
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| 20 | int main() { |
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| 21 | struct sigaction act = {}; |
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| 22 | act.sa_sigaction = &handler; |
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| 23 | sigaction(SIGPROF, act: &act, oact: 0); |
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| 24 | kill(pid: getpid(), SIGPROF); |
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| 25 | sleep(seconds: 1); // let the signal handler run |
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| 26 | fprintf(stderr, format: "DONE\n" ); |
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| 27 | // CHECK: DONE |
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| 28 | return 0; |
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| 29 | } |
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| 30 | |
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| 31 | |
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